Question

98 POINTS FOR ANYONE THAT DOES THIS NOW!!

Answer 1

In simpler terms, a proton and neutron weigh 1 amu (atomic mass unit) each.

The nucleus has 15 protons and 18 neutrons. Since a proton's and a neutron's weight is only 1 amu, we can simply add the number of protons and neutrons to find the total mass of the nucleus:

$15 + 18 = \boxed{33}$

The nucleus' mass is 33 amu.

Answer 2

Hello,

Your answer would be:

33amu

Explanation: I calculated that if you add the 15 protons with 18 neutrons it’s gets you to 33. Which would be your answer 33amu!

Hope it helps!

Brainliest!?!

~Rendorforestmusic